About this trial
Supratentorial craniotomy is one of the most common neurosurgical procedures, with severe perioperative pain. Inadequate perioperative pain relief has been associated with increased blood pressure and intracranial pressure, favoring bleeding and cerebral cerebral hypoperfusion. The ideal analgesia for neurosurgery requires complete pain relief, eliminates the side effects of opioid drugs and no influence for neurological function. Previous studies have proposed a multimodal analgesic strategy, combining analgesics and local anaesthesia, it is expected to achieve the above benefits.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Aged from 18 to 65 years
American Society of Anesthesiologists physical status I to III
Scheduled to undergo elective supratentorial tumor resection
Disqualifiers
Incision-area skin infection
A history of previous craniotomy
Allergy to study medications
A history of preoperative change in consciousness or cognitive function
Trial design
Factorial
Treatments tested in this trial
Dexmedetomidine
DrugThe 200ug dexmedetomidine will be diluted into a 50ml syringe and administered with 0.4ug/kg/h intraoperatively and 0.05 μg/kg/h for 48 hours after surgery.
Normal saline
DrugIn the placebo group, the 0.9% saline is administered with the same volume at the same speed as the dexmedetomidine group
Local analgesic techniques
Other interventionAs for scalp nerve block, each nerve will be blocked separately with 1-2 mL of 0.67 % liposomal bupivacaine
no Local analgesic techniques
Other interventionNo Local analgesic techniques will be given.
Treatment groups
Trial outcomes
Primary outcomes
Cumulative amount of sufentanil used by patient-controlled analgesia (PCIA) in patients within 48 hours postoperatively.
Cumulative amount of sufentanil used by patient-controlled analgesia (PCIA) in patients within 48 hours postoperatively.
Locations
Sponsors and contacts
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